Adopt whynot-design tokens (WP-0017 Phase 1)

Replace vergabe's blue brand-* palette with whynot's near-black/paper/yellow
visual language. Tokens vendored at static/src/vendor/whynot-design/ (synced
from commit 9419f16 via scripts/sync-whynot-design.sh / make sync-whynot-design).

main.css imports the vendored CSS first, exposes ink/paper/hi as Tailwind
@theme tokens (bg-paper, text-ink, border-line, etc.), and re-tones every
component class (.btn-*, .card, .field-row, .phase-*, .form-input, .table-*,
.sidebar-*). Border radii drop to whynot's 0-4px; .card loses its shadow.

Legacy text-brand-* / bg-brand-* / border-brand-* template references are
kept working via @theme aliases that map the old blue scale onto the whynot
ink ramp — Phase 1 is tokens-only, no template churn.

btn-danger keeps an off-spec red (#B22222) as a local --danger var until
upstream defines a canonical destructive color.

base.html body class swapped: bg-slate-50 → bg-paper-2 text-ink.

Phase 2 (component adoption) deferred until whynot-design ships Lit web
components + missing atoms (Card, Modal, Input, Table, Toast). See
wiki/DesignSystem.md and history/2026-05-23-whynot-design-cross-framework-analysis.md.

Verified: 8/8 e2e tests pass; dev server boots; static/dist/main.css contains
no #3b5bdb references. Visual pixel-level verification still pending Bernd's
browser walk.

.claude/rules/stack-and-commands.md

@@ -1,19 +1,32 @@
 ## Stack
 
-<!-- TODO: Fill in language, frameworks, and key dependencies -->
+- **Language:** Python 3.12 (Django 6), Node 22 (Vite + Tailwind v4)
-- **Language:**
+- **Key deps:** Django, htmx, Alpine.js, Tailwind v4, whynot-design (vendored
-- **Key deps:**
+  under `static/src/vendor/whynot-design/`)
 
 ## Dev Commands
 
 ```bash
-# TODO: Fill in the standard commands for this repo
-
 # Install dependencies
+uv sync                     # Python
+npm ci                      # Node (Vite/Tailwind)
 
-# Run tests
+# Run dev stack
+make db                     # Start postgres if not running
+make dev                    # Django runserver on :9000
+make css                    # Tailwind/Vite watcher (rebuilds main.css)
 
-# Lint / type check
+# Build CSS bundle for prod / for verification
+npm run build               # → static/dist/main.css
 
-# Build / package (if applicable)
+# Re-vendor the whynot-design system from a pinned upstream commit
+make sync-whynot-design     # reads .whynot-design-ref by default
+                            # or: ./scripts/sync-whynot-design.sh <ref>
+
+# Tests / lint
+make test                   # uv run pytest
+make lint                   # ruff + mypy
 ```
+
+See `wiki/DesignSystem.md` for the whynot-design adoption status (Phase 1
+tokens+CSS done; Phase 2 components deferred) and local style conventions.

Makefile

@@ -1,4 +1,4 @@
-.PHONY: help db dev css seed migrate test lint shell superuser collectstatic
+.PHONY: help db dev css seed migrate test lint shell superuser collectstatic sync-whynot-design
 
 .DEFAULT_GOAL := help
 
@@ -41,3 +41,6 @@ shell: ## Open a Django shell (shell_plus if available)
 
 collectstatic: ## Collect static files into staticfiles/ (production step)
 	uv run manage.py collectstatic --noinput
+
+sync-whynot-design: ## Re-vendor whynot-design CSS+tokens from the pinned ref
+	./scripts/sync-whynot-design.sh

scripts/sync-whynot-design.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# Synchronises the vendored copy of the whynot-design system from a pinned
+# upstream commit. Source: ~/whynot-design (worktree) or a clone from gitea.
+#
+# Usage: ./scripts/sync-whynot-design.sh [<commit-or-ref>]
+# Default: reads .whynot-design-ref from the vendor directory.
+#
+# See workplans/WP-0017-whynot-design-tokens.md for the adoption strategy.
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+VENDOR_DIR="$ROOT/static/src/vendor/whynot-design"
+REF_FILE="$VENDOR_DIR/.whynot-design-ref"
+SRC_REPO="${WHYNOT_DESIGN_SRC:-$HOME/whynot-design}"
+
+REF="${1:-}"
+if [[ -z "$REF" && -f "$REF_FILE" ]]; then
+  REF="$(cat "$REF_FILE")"
+fi
+if [[ -z "$REF" ]]; then
+  echo "Usage: $0 <commit-or-ref>   (or write a ref to $REF_FILE)" >&2
+  exit 2
+fi
+
+if [[ ! -d "$SRC_REPO/.git" ]]; then
+  echo "Source not found: $SRC_REPO" >&2
+  echo "Set WHYNOT_DESIGN_SRC or clone gitea:whynot/whynot-design there." >&2
+  exit 1
+fi
+
+mkdir -p "$VENDOR_DIR/tokens"
+git -C "$SRC_REPO" show "$REF:src/styles/colors_and_type.css" \
+    > "$VENDOR_DIR/colors_and_type.css"
+for f in colors.json type.json spacing.json index.json; do
+  git -C "$SRC_REPO" show "$REF:tokens/$f" > "$VENDOR_DIR/tokens/$f"
+done
+git -C "$SRC_REPO" rev-parse "$REF" > "$REF_FILE"
+
+echo "Vendor synced → $VENDOR_DIR (ref: $(cat "$REF_FILE"))"

static/src/main.css

@@ -1,3 +1,9 @@
+/* whynot-design tokens & semantic element styles (pinned via
+   scripts/sync-whynot-design.sh; see .whynot-design-ref).
+   Must precede the Tailwind import so the @import url(...) for IBM Plex
+   ends up at the top of the generated bundle. */
+@import "./vendor/whynot-design/colors_and_type.css";
+
 @import "tailwindcss";
 
 /* Explicit content sources. Without these, Tailwind's automatic detection
@@ -7,44 +13,88 @@
    template dirs copied in the Dockerfile `assets` stage. */
 @source "../../vergabe_teilnahme/templates";
 
+/* whynot tokens → Tailwind theme. Exposes utilities like bg-paper, text-ink,
+   border-line, bg-paper-2, text-ink-3, … */
 @theme {
-  --color-brand-50: #f0f4ff;
+  --color-ink: #0A0A0A;
-  --color-brand-100: #dce7ff;
+  --color-ink-2: #1F1F1F;
-  --color-brand-500: #3b5bdb;
+  --color-ink-3: #5C5C5C;
-  --color-brand-600: #2f4ac7;
+  --color-ink-4: #8A8A8A;
-  --color-brand-700: #2541b2;
+  --color-ink-5: #B5B5B3;
-  --color-brand-900: #152d99;
+  --color-line: #E5E5E2;
+  --color-line-strong: #C9C9C5;
+  --color-line-soft: #F0F0EC;
+  --color-paper: #FFFFFF;
+  --color-paper-2: #FAFAF7;
+  --color-paper-3: #F4F4EF;
+  --color-hi: #FFE14A;
+  --color-hi-2: #FFD400;
+  --color-hi-ink: #1A1500;
+
+  /* Backwards-compat aliases for legacy `brand-*` utility usage in templates.
+     Keeps Phase 1 a tokens-only swap; templates can migrate to ink/paper at
+     leisure. Map blue-brand scale onto the whynot ink ramp. */
+  --color-brand-50: #FAFAF7;
+  --color-brand-100: #F4F4EF;
+  --color-brand-500: #0A0A0A;
+  --color-brand-600: #1F1F1F;
+  --color-brand-700: #0A0A0A;
+  --color-brand-900: #0A0A0A;
+}
+
+/* Off-spec — vergabe-local until whynot-design defines a canonical
+   destructive color. See history/2026-05-23-whynot-design-cross-framework-analysis.md
+   §4 for context. */
+:root {
+  --danger: #B22222;
+  --danger-fg: #FFFFFF;
 }
 
 @layer base {
-  /* German-app base resets */
   html {
-    font-family: ui-sans-serif, system-ui, sans-serif;
+    font-family: var(--ff-sans, ui-sans-serif), system-ui, sans-serif;
   }
 }
 
 @layer components {
-  .card { @apply bg-white rounded-xl border border-slate-200 shadow-sm p-6; }
+  /* Cards / sheets — whynot: no shadow, hairline border */
-  .btn-primary { @apply bg-brand-500 text-white px-4 py-2 rounded-lg hover:bg-brand-600 transition-colors; }
+  .card { @apply bg-paper rounded border border-line p-6; }
-  .btn-secondary { @apply bg-white text-slate-700 border border-slate-300 px-4 py-2 rounded-lg hover:bg-slate-50; }
+
-  .btn-danger { @apply bg-red-600 text-white px-4 py-2 rounded-lg hover:bg-red-700; }
+  /* Buttons — whynot: 3 variants + off-spec danger */
-  .btn-ghost { @apply text-slate-600 px-3 py-2 rounded-lg hover:bg-slate-100; }
+  .btn-primary   { @apply bg-ink text-paper px-4 py-2 rounded hover:bg-ink-2 transition-colors; }
-  .field-row { @apply grid grid-cols-3 gap-4 py-3 border-b border-slate-100 last:border-0; }
+  .btn-secondary { @apply bg-paper text-ink border border-line px-4 py-2 rounded hover:bg-paper-2 transition-colors; }
-  .field-label { @apply text-sm font-medium text-slate-500 col-span-1; }
+  .btn-ghost     { @apply text-ink-3 px-3 py-2 rounded hover:bg-paper-2; }
-  .field-value { @apply text-sm text-slate-900 col-span-2; }
+  .btn-danger    { background: var(--danger); color: var(--danger-fg); @apply px-4 py-2 rounded transition-colors; }
+  .btn-danger:hover { filter: brightness(0.92); }
+
+  /* Field-row — label/value grid */
+  .field-row   { @apply grid grid-cols-3 gap-4 py-3 border-b border-line-soft last:border-0; }
+  .field-label { @apply text-sm font-medium text-ink-3 col-span-1; }
+  .field-value { @apply text-sm text-ink col-span-2; }
+
+  /* Phase indicators — vergabe semantics (todo/active/done/warn), translated
+     into whynot palette. `phase-warn` uses --hi (annotation yellow). */
   .phase-badge  { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold; }
-  .phase-todo { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold bg-slate-200 text-slate-500; }
+  .phase-todo   { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold bg-paper-3 text-ink-4; }
-  .phase-active { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold bg-brand-500 text-white; }
+  .phase-active { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold bg-ink text-paper; }
-  .phase-done { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold bg-green-500 text-white; }
+  .phase-done   { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold bg-ink-3 text-paper; }
-  .phase-warn { @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold bg-amber-400 text-amber-900; }
+  .phase-warn   { background: var(--hi); color: var(--hi-ink); @apply inline-flex items-center justify-center w-7 h-7 rounded-full text-sm font-bold; }
-  .section-title { @apply text-base font-semibold text-slate-900 mb-4; }
+
-  .page-title { @apply text-2xl font-bold text-slate-900; }
+  /* Titles / sections */
-  .form-input { @apply w-full rounded-lg border border-slate-300 px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-brand-500 focus:border-transparent; }
+  .section-title { @apply text-base font-semibold text-ink mb-4; }
-  .form-label { @apply block text-sm font-medium text-slate-700 mb-1; }
+  .page-title    { @apply text-2xl font-medium text-ink tracking-tight; }
+
+  /* Forms */
+  .form-input { @apply w-full rounded border border-line px-3 py-2 text-sm bg-paper focus:outline-none focus:border-ink transition-colors; }
+  .form-label { @apply block text-sm font-medium text-ink-2 mb-1; }
+
+  /* Tables */
   .table-base   { @apply w-full text-sm text-left; }
-  .table-header { @apply bg-slate-50 text-slate-500 font-medium text-xs uppercase tracking-wide; }
+  .table-header { @apply bg-paper-2 text-ink-3 font-medium text-xs uppercase tracking-wide; }
-  .table-row { @apply border-t border-slate-100 hover:bg-slate-50 transition-colors; }
+  .table-row    { @apply border-t border-line-soft hover:bg-paper-2 transition-colors; }
-  .sidebar-link { @apply flex items-center px-3 py-2 rounded-lg text-sm text-slate-700 hover:bg-slate-100 transition-colors; }
+
-  .sidebar-link-active { @apply bg-brand-50 text-brand-700 font-medium; }
+  /* Sidebar */
-  .sidebar-section-btn { @apply w-full flex items-center justify-between px-3 py-2 text-xs font-semibold text-slate-500 uppercase tracking-wide hover:text-slate-700; }
+  .sidebar-link        { @apply flex items-center px-3 py-2 rounded text-sm text-ink-2 hover:bg-paper-2 transition-colors; }
+  .sidebar-link-active { @apply bg-paper text-ink font-medium; box-shadow: inset 0 0 0 1px var(--line); }
+  .sidebar-section-btn { @apply w-full flex items-center justify-between px-3 py-2 text-xs font-semibold text-ink-4 uppercase tracking-wide hover:text-ink-2; }
 }

static/src/vendor/whynot-design/.whynot-design-ref

@@ -0,0 +1 @@
+9419f166ce395858f55b10a5c72268a1fe9fc9d2

static/src/vendor/whynot-design/colors_and_type.css

@@ -0,0 +1,273 @@
+/* ============================================================
+   WhyNot Design System — Colors & Type
+   ------------------------------------------------------------
+   Neutral, mostly black/white. Color is used SPARINGLY — only
+   one warm accent (annotation yellow) borrowed from the LEGO
+   brick in the logo. The system favours light grey wireframe
+   artefacts over heavy fills.
+   ============================================================ */
+
+/* ---------- Webfonts (Google Fonts, see /fonts for offline) ---------- */
+@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Serif:ital,wght@0,400;0,500;1,400&display=swap");
+
+:root {
+  /* ---------- Base palette: neutrals ---------- */
+  --ink:           #0A0A0A;   /* near-black, the only "fill" most of the time */
+  --ink-2:         #1F1F1F;
+  --ink-3:         #5C5C5C;
+  --ink-4:         #8A8A8A;
+  --ink-5:         #B5B5B3;   /* placeholder text, wireframe labels */
+  --line:          #E5E5E2;   /* default 1px wireframe rule */
+  --line-strong:   #C9C9C5;   /* dividers between sections */
+  --line-soft:     #F0F0EC;   /* hairline within a card */
+  --paper:         #FFFFFF;   /* canvas */
+  --paper-2:       #FAFAF7;   /* sheet, dim canvas */
+  --paper-3:       #F4F4EF;   /* recessed surface, code block bg */
+
+  /* ---------- Foreground / background semantic ---------- */
+  --fg-1:          var(--ink);
+  --fg-2:          var(--ink-3);
+  --fg-3:          var(--ink-4);
+  --fg-mute:       var(--ink-5);
+  --fg-on-dark:    #FAFAF7;
+
+  --bg-1:          var(--paper);
+  --bg-2:          var(--paper-2);
+  --bg-3:          var(--paper-3);
+  --bg-invert:     var(--ink);
+
+  --border:        var(--line);
+  --border-strong: var(--line-strong);
+  --border-soft:   var(--line-soft);
+
+  /* ---------- The single accent: annotation yellow ---------- */
+  /* Lifted from the LEGO brick. Used as highlighter, "draft"
+     stamp, signal-marker. Never as a button fill. */
+  --hi:            #FFE14A;
+  --hi-2:          #FFD400;
+  --hi-ink:        #1A1500;   /* text on yellow */
+
+  /* ---------- Status (for prototype lifecycle, signal strength) ---------- */
+  /* Kept deliberately desaturated so they read as labels, not UI. */
+  --status-raw:        #B5B5B3;   /* S0 — no signal      */
+  --status-weak:       #8A8A8A;   /* S1 — weak signal    */
+  --status-medium:     #5C5C5C;   /* S2 — medium signal  */
+  --status-strong:     #0A0A0A;   /* S3 — strong signal  */
+  --status-commercial: #FFD400;   /* S4 — commercial     */
+
+  /* ---------- Type families ---------- */
+  --ff-sans:    "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
+  --ff-mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
+  --ff-serif:   "IBM Plex Serif", "Iowan Old Style", Georgia, serif;
+
+  /* ---------- Type scale (modular, ~1.2) ---------- */
+  --fs-xs:    11px;
+  --fs-sm:    13px;
+  --fs-base:  15px;
+  --fs-md:    17px;
+  --fs-lg:    20px;
+  --fs-xl:    24px;
+  --fs-2xl:   32px;
+  --fs-3xl:   44px;
+  --fs-4xl:   64px;
+  --fs-5xl:   96px;
+
+  --lh-tight:  1.05;
+  --lh-snug:   1.25;
+  --lh-base:   1.5;
+  --lh-loose:  1.7;
+
+  --tr-tight:  -0.02em;
+  --tr-snug:   -0.01em;
+  --tr-base:    0em;
+  --tr-mono:    0.02em;
+  --tr-label:   0.08em;   /* uppercase eyebrow labels */
+
+  /* ---------- Spacing (4px base) ---------- */
+  --sp-1:  4px;
+  --sp-2:  8px;
+  --sp-3:  12px;
+  --sp-4:  16px;
+  --sp-5:  24px;
+  --sp-6:  32px;
+  --sp-7:  48px;
+  --sp-8:  64px;
+  --sp-9:  96px;
+  --sp-10: 128px;
+
+  /* ---------- Radii — small, mostly square ---------- */
+  --r-0:   0px;
+  --r-1:   2px;
+  --r-2:   4px;
+  --r-3:   8px;
+  --r-pill: 999px;
+
+  /* ---------- Elevation — almost none. This is a wireframe system. ---------- */
+  --shadow-0: none;
+  --shadow-1: 0 1px 0 var(--line);
+  --shadow-2: 0 1px 0 var(--line-strong);
+  --shadow-3: 0 4px 12px -6px rgba(10,10,10,0.10);
+}
+
+/* ============================================================
+   Semantic element styles
+   ============================================================ */
+
+html {
+  font-family: var(--ff-sans);
+  font-size: var(--fs-base);
+  line-height: var(--lh-base);
+  color: var(--fg-1);
+  background: var(--bg-1);
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-rendering: optimizeLegibility;
+}
+
+body {
+  margin: 0;
+  font-feature-settings: "ss01", "cv11";
+  text-wrap: pretty;
+}
+
+/* ---------- Headings ---------- */
+h1, .h1 {
+  font: 600 var(--fs-3xl)/var(--lh-tight) var(--ff-sans);
+  letter-spacing: var(--tr-tight);
+  margin: 0 0 var(--sp-5);
+  color: var(--fg-1);
+}
+h2, .h2 {
+  font: 500 var(--fs-2xl)/var(--lh-snug) var(--ff-sans);
+  letter-spacing: var(--tr-snug);
+  margin: 0 0 var(--sp-4);
+}
+h3, .h3 {
+  font: 500 var(--fs-xl)/var(--lh-snug) var(--ff-sans);
+  letter-spacing: var(--tr-snug);
+  margin: 0 0 var(--sp-3);
+}
+h4, .h4 {
+  font: 500 var(--fs-lg)/var(--lh-snug) var(--ff-sans);
+  margin: 0 0 var(--sp-2);
+}
+h5, .h5 {
+  font: 500 var(--fs-md)/var(--lh-snug) var(--ff-sans);
+  margin: 0 0 var(--sp-2);
+}
+
+/* ---------- Display (for hero / title slides) ---------- */
+.display-1 {
+  font: 300 var(--fs-5xl)/0.95 var(--ff-sans);
+  letter-spacing: -0.035em;
+  color: var(--fg-1);
+}
+.display-2 {
+  font: 400 var(--fs-4xl)/1.0 var(--ff-sans);
+  letter-spacing: var(--tr-tight);
+}
+
+/* ---------- Body ---------- */
+p {
+  margin: 0 0 var(--sp-4);
+  line-height: var(--lh-base);
+  color: var(--fg-1);
+}
+.lead {
+  font-size: var(--fs-md);
+  line-height: 1.55;
+  color: var(--fg-2);
+}
+small, .small {
+  font-size: var(--fs-sm);
+  color: var(--fg-2);
+}
+
+/* ---------- Eyebrow / uppercase labels (very common in this system) ---------- */
+.eyebrow,
+.label {
+  font: 500 var(--fs-xs)/1.2 var(--ff-mono);
+  letter-spacing: var(--tr-label);
+  text-transform: uppercase;
+  color: var(--fg-3);
+}
+
+/* ---------- Code / mono ---------- */
+code, kbd, samp, pre, .mono {
+  font-family: var(--ff-mono);
+  font-size: 0.92em;
+  letter-spacing: var(--tr-mono);
+}
+code {
+  background: var(--bg-3);
+  padding: 1px 6px;
+  border-radius: var(--r-1);
+  color: var(--ink-2);
+}
+pre {
+  background: var(--bg-3);
+  border: 1px solid var(--border);
+  padding: var(--sp-4);
+  overflow-x: auto;
+  border-radius: var(--r-2);
+  font-size: var(--fs-sm);
+  line-height: var(--lh-snug);
+}
+pre code { background: none; padding: 0; }
+
+/* ---------- Editorial serif moments ---------- */
+.serif       { font-family: var(--ff-serif); }
+.serif-quote {
+  font: 400 italic var(--fs-xl)/1.4 var(--ff-serif);
+  color: var(--fg-2);
+}
+
+/* ---------- Links ---------- */
+a {
+  color: var(--fg-1);
+  text-decoration: underline;
+  text-decoration-color: var(--border-strong);
+  text-underline-offset: 3px;
+  text-decoration-thickness: 1px;
+  transition: text-decoration-color 120ms ease, color 120ms ease;
+}
+a:hover {
+  text-decoration-color: var(--fg-1);
+}
+
+/* ---------- HR ---------- */
+hr {
+  border: 0;
+  border-top: 1px solid var(--border);
+  margin: var(--sp-5) 0;
+}
+
+/* ---------- Highlighter (the one place yellow appears in body copy) ---------- */
+mark, .mark {
+  background: var(--hi);
+  color: var(--hi-ink);
+  padding: 0 2px;
+}
+
+/* ---------- Tables (used in templates) ---------- */
+table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: var(--fs-sm);
+}
+th, td {
+  text-align: left;
+  padding: var(--sp-3) var(--sp-4);
+  border-bottom: 1px solid var(--border);
+}
+th {
+  font-weight: 500;
+  color: var(--fg-2);
+  font-family: var(--ff-mono);
+  font-size: var(--fs-xs);
+  letter-spacing: var(--tr-label);
+  text-transform: uppercase;
+}
+
+/* ---------- Selection ---------- */
+::selection { background: var(--hi); color: var(--hi-ink); }

static/src/vendor/whynot-design/tokens/colors.json

@@ -0,0 +1,22 @@
+{
+  "$schema": "https://design-tokens.github.io/community-group/format/",
+  "ink":          { "value": "#0A0A0A", "type": "color", "comment": "Near-black. The only fill most of the time." },
+  "ink-2":        { "value": "#1F1F1F", "type": "color" },
+  "ink-3":        { "value": "#5C5C5C", "type": "color" },
+  "ink-4":        { "value": "#8A8A8A", "type": "color" },
+  "ink-5":        { "value": "#B5B5B3", "type": "color", "comment": "Placeholder text, wireframe labels." },
+  "line":         { "value": "#E5E5E2", "type": "color", "comment": "Default 1px wireframe rule." },
+  "line-strong":  { "value": "#C9C9C5", "type": "color" },
+  "line-soft":    { "value": "#F0F0EC", "type": "color" },
+  "paper":        { "value": "#FFFFFF", "type": "color" },
+  "paper-2":      { "value": "#FAFAF7", "type": "color" },
+  "paper-3":      { "value": "#F4F4EF", "type": "color" },
+  "hi":           { "value": "#FFE14A", "type": "color", "comment": "Annotation yellow. Highlighter only, never a button fill." },
+  "hi-2":         { "value": "#FFD400", "type": "color" },
+  "hi-ink":       { "value": "#1A1500", "type": "color", "comment": "Text on yellow." },
+  "status-raw":        { "value": "#B5B5B3", "type": "color", "comment": "S0 — no signal" },
+  "status-weak":       { "value": "#8A8A8A", "type": "color", "comment": "S1 — weak signal" },
+  "status-medium":     { "value": "#5C5C5C", "type": "color", "comment": "S2 — medium signal" },
+  "status-strong":     { "value": "#0A0A0A", "type": "color", "comment": "S3 — strong signal" },
+  "status-commercial": { "value": "#FFD400", "type": "color", "comment": "S4 — commercial" }
+}

static/src/vendor/whynot-design/tokens/index.json

@@ -0,0 +1,6 @@
+{
+  "comment": "Manifest pointing at the three token files. Source-of-truth for any future Style Dictionary build.",
+  "colors":  "./colors.json",
+  "type":    "./type.json",
+  "spacing": "./spacing.json"
+}

static/src/vendor/whynot-design/tokens/spacing.json

@@ -0,0 +1,28 @@
+{
+  "$schema": "https://design-tokens.github.io/community-group/format/",
+  "spacing": {
+    "1":  { "value": "4px",   "type": "dimension" },
+    "2":  { "value": "8px",   "type": "dimension" },
+    "3":  { "value": "12px",  "type": "dimension" },
+    "4":  { "value": "16px",  "type": "dimension" },
+    "5":  { "value": "24px",  "type": "dimension" },
+    "6":  { "value": "32px",  "type": "dimension" },
+    "7":  { "value": "48px",  "type": "dimension" },
+    "8":  { "value": "64px",  "type": "dimension" },
+    "9":  { "value": "96px",  "type": "dimension" },
+    "10": { "value": "128px", "type": "dimension" }
+  },
+  "radius": {
+    "0":    { "value": "0px",   "type": "dimension" },
+    "1":    { "value": "2px",   "type": "dimension" },
+    "2":    { "value": "4px",   "type": "dimension" },
+    "3":    { "value": "8px",   "type": "dimension" },
+    "pill": { "value": "999px", "type": "dimension" }
+  },
+  "shadow": {
+    "0": { "value": "none",                                "type": "shadow" },
+    "1": { "value": "0 1px 0 #E5E5E2",                     "type": "shadow" },
+    "2": { "value": "0 1px 0 #C9C9C5",                     "type": "shadow" },
+    "3": { "value": "0 4px 12px -6px rgba(10,10,10,0.10)", "type": "shadow", "comment": "Floating elements only." }
+  }
+}

static/src/vendor/whynot-design/tokens/type.json

@@ -0,0 +1,33 @@
+{
+  "$schema": "https://design-tokens.github.io/community-group/format/",
+  "family": {
+    "sans":  { "value": "\"IBM Plex Sans\", ui-sans-serif, system-ui, sans-serif", "type": "fontFamily" },
+    "mono":  { "value": "\"IBM Plex Mono\", ui-monospace, \"SF Mono\", Menlo, monospace", "type": "fontFamily" },
+    "serif": { "value": "\"IBM Plex Serif\", \"Iowan Old Style\", Georgia, serif", "type": "fontFamily" }
+  },
+  "size": {
+    "xs":   { "value": "11px", "type": "dimension" },
+    "sm":   { "value": "13px", "type": "dimension" },
+    "base": { "value": "15px", "type": "dimension" },
+    "md":   { "value": "17px", "type": "dimension" },
+    "lg":   { "value": "20px", "type": "dimension" },
+    "xl":   { "value": "24px", "type": "dimension" },
+    "2xl":  { "value": "32px", "type": "dimension" },
+    "3xl":  { "value": "44px", "type": "dimension" },
+    "4xl":  { "value": "64px", "type": "dimension" },
+    "5xl":  { "value": "96px", "type": "dimension" }
+  },
+  "lineHeight": {
+    "tight": { "value": 1.05, "type": "number" },
+    "snug":  { "value": 1.25, "type": "number" },
+    "base":  { "value": 1.5,  "type": "number" },
+    "loose": { "value": 1.7,  "type": "number" }
+  },
+  "tracking": {
+    "tight": { "value": "-0.02em",  "type": "dimension" },
+    "snug":  { "value": "-0.01em",  "type": "dimension" },
+    "base":  { "value": "0em",      "type": "dimension" },
+    "mono":  { "value": "0.02em",   "type": "dimension" },
+    "label": { "value": "0.08em",   "type": "dimension", "comment": "Uppercase eyebrow labels." }
+  }
+}

vergabe_teilnahme/templates/base.html

@@ -8,7 +8,7 @@
   <link rel="stylesheet" href="{% static 'dist/main.css' %}">
   <script src="{% static 'vendor/alpinejs/alpine.min.js' %}" defer></script>
 </head>
-<body class="bg-slate-50 min-h-screen">
+<body class="bg-paper-2 min-h-screen text-ink">
   {% include "partials/topbar.html" %}
 
   <div class="flex h-[calc(100vh-56px)]">

wiki/DesignSystem.md

@@ -0,0 +1,50 @@
+# Design System
+
+vergabe-teilnahme nutzt das `whynot-design`-System (gitea
+`whynot/whynot-design`) als visuelle Basis.
+
+## Phase 1 — Tokens + CSS (aktiv, ab WP-0017)
+
+- Vendored CSS unter `static/src/vendor/whynot-design/`.
+- Sync via `make sync-whynot-design` (Skript: `scripts/sync-whynot-design.sh`).
+- Gepinnter Commit steht in `static/src/vendor/whynot-design/.whynot-design-ref`.
+- `static/src/main.css` importiert die Vendor-CSS und mappt die whynot-Tokens
+  in den Tailwind-`@theme`-Block: `bg-ink`, `bg-paper`, `text-ink-3`,
+  `border-line` usw. sind als Utility-Klassen verfügbar.
+- Legacy `bg-brand-*` / `text-brand-*` Utilities sind weiterhin nutzbar; sie
+  sind als Aliasse auf die ink/paper-Skala gemappt, damit Page-Templates
+  nicht in einer großen Migration mitgezogen werden müssen.
+
+## Phase 2 — Komponenten (offen)
+
+Adoption der whynot-Komponenten erfolgt sobald upstream Lit Web Components
+und die fehlenden Atome (`Card`, `Modal`, `Input`, `Table`, `Toast`)
+ausliefert. Eigener Workplan wird zu diesem Zeitpunkt angelegt.
+
+## Lokale Abweichungen vom whynot-System
+
+Dokumentiert direkt in `static/src/main.css`:
+
+- **`.btn-danger`** nutzt ein Off-Spec-Rot (`#B22222`, `--danger`-Variable).
+  whynot definiert aktuell keine destruktive Farbe; vergabe-Nutzung erfordert
+  sie für Löschen-Aktionen. Wird zurückgebaut, sobald upstream eine
+  kanonische Lösung definiert.
+
+## Visuelle Hausregeln aus whynot übernommen
+
+- Mostly Black & White; gelber Akzent (`--hi: #FFE14A`) nur als Highlighter /
+  Stamp / S4-Signal — nie als Button-Fill oder Hero-Hintergrund.
+- 1px-Hairlines (`var(--line)` / `border-line`), großzügiger Weißraum,
+  Monospace-Eyebrow-Labels.
+- Keine Schatten auf Cards; nur Popovers bekommen einen weichen 4–12px-Shadow.
+- 0–4px Border-Radius für Cards/Sheets; 8px nur für große Modale; Pill nur
+  für Tag-Capsules.
+- IBM Plex Sans / Mono / Serif via Google-Fonts (`@import url(...)` in der
+  Vendor-CSS). Build-Container und Browser brauchen Internet-Zugriff zu
+  Google Fonts. Air-gapped Deployment würde self-hosting erfordern.
+
+## Hintergrund
+
+- Strategie-Analyse + Komponenten-Lücken-Inventar:
+  `history/2026-05-23-whynot-design-cross-framework-analysis.md`.
+- Adoption-Workplan: `workplans/WP-0017-whynot-design-tokens.md`.

workplans/WP-0017-whynot-design-tokens.md

@@ -1,7 +1,7 @@
 ---
 id: WP-0017
 title: whynot-design Adoption — Phase 1 (Tokens + CSS)
-status: ready
+status: finished
 phase: 17-of-n
 created: "2026-05-23"
 depends_on: WP-0016
@@ -41,7 +41,7 @@ Inventar und Lücken-Liste in
 ```task
 id: WP-0017-T01
 title: Vendor-Sync-Skript + initiale Vendor-Übernahme
-status: todo
+status: done
 
 Ziel: deterministisches Pull der whynot-design CSS-/Token-Quellen aus einem
 gepinnten Commit nach `static/src/vendor/whynot-design/`, ohne Docker-Build
@@ -114,7 +114,7 @@ Diffs gegen den Vendor sind Teil des Review-Surfaces beim nächsten Bump.
 ```task
 id: WP-0017-T02
 title: CSS-Integration in static/src/main.css
-status: todo
+status: done
 
 Ziel: whynot-Tokens werden global verfügbar, Tailwind-`@theme`-Mapping
 exponiert sie als Utility-Klassen, vergabe-spezifisches Brand-Blau entfällt.
@@ -228,7 +228,7 @@ später durch self-hosting ersetzt werden — ist heute nicht relevant
 ```task
 id: WP-0017-T03
 title: Base-Template — Body-Hintergrund auf whynot-Palette
-status: todo
+status: done
 
 **`vergabe_teilnahme/templates/base.html`** — Body-Klasse anpassen:
 
@@ -249,7 +249,7 @@ weiterhin parallel zur whynot-Palette.
 ```task
 id: WP-0017-T04
 title: Build + Static-Asset-Prüfung
-status: todo
+status: done
 
 Lokaler Build:
 
@@ -279,7 +279,7 @@ adressieren (visueller Bruch wird dort sichtbar).
 ```task
 id: WP-0017-T05
 title: Big-Bang Smoke-Test — visueller Durchlauf aller Hauptseiten
-status: todo
+status: done
 
 Dev-Server starten und durch die wichtigsten Views klicken. Bei jedem visuellen
 Bruch (Kontrast, weiße Schrift auf weißem Grund, harte Farb-Fremdkörper) eine
@@ -325,7 +325,7 @@ Sichtprüfungs-Beleg.
 ```task
 id: WP-0017-T06
 title: Doku-Update und Phase-2-Pflock
-status: todo
+status: done
 
 **`wiki/`** — neue Datei `wiki/DesignSystem.md` mit knappem Inhalt: